Global Patent Index - EP 1209133 A2

EP 1209133 A2 20020529 - Powder dispersant for hydraulic compositions

Title (en)

Powder dispersant for hydraulic compositions

Title (de)

Pulverförmige Dispergiermittel für hydraulische Zusammensetzungen

Title (fr)

Dispersant en poudre pour compositions hydrauliques

Publication

EP 1209133 A2 20020529 (EN)

Application

EP 01127479 A 20011128

Priority

  • JP 2000361125 A 20001128
  • JP 2000361126 A 20001128

Abstract (en)

The present invention provides a powdery dispersant for hydraulic compositions, which is excellent in pumping before drying and in pressure resistance and humidity resistance, which comprises one or more copolymers obtained by polymerizing a specific vinyl monomer (a) such as an ethylenically unsaturated carboxylic acid derivative having a polyoxyalkylene group with a specific vinyl monomer (b) such as (meth)acrylic acid etc., wherein the average number of C2-4 oxyalkylene groups or oxystyrene groups added is 45 to 150, (a)/Ä(a) + (b)Ü x 100 ranges from 15 to 45 (mole-%), and at least a part of the copolymers are monovalent or polyvalent metal salts.

IPC 1-7

C04B 24/00; C08F 220/28; C08F 216/14; C08F 220/06

IPC 8 full level

C04B 24/26 (2006.01); C04B 24/32 (2006.01); C08F 216/14 (2006.01); C08F 220/04 (2006.01); C08F 220/06 (2006.01); C08F 220/28 (2006.01)

CPC (source: EP US)

C04B 24/2647 (2013.01 - EP US); C04B 24/267 (2013.01 - EP US); C08F 220/04 (2013.01 - EP US); C08F 220/06 (2013.01 - EP US); C08F 220/286 (2020.02 - EP US); C04B 2103/0057 (2013.01 - EP US); C04B 2103/408 (2013.01 - EP US); C08F 216/1433 (2020.02 - EP US)

C-Set (source: EP US)

  1. C08F 220/286 + C08F 220/06
  2. C08F 220/286 + C08F 220/06 + C08F 228/02

Citation (applicant)

Designated contracting state (EPC)

DE FR IT NL

DOCDB simple family (publication)

EP 1209133 A2 20020529; EP 1209133 A3 20030205; EP 1209133 B1 20121107; DE 60132381 D1 20080221; DE 60132381 T2 20090102; EP 1471042 A2 20041027; EP 1471042 A3 20060719; EP 1471042 B1 20080109; US 2002099115 A1 20020725; US 2004235687 A1 20041125; US 2004242760 A1 20041202; US 7030177 B2 20060418; US 7030178 B2 20060418

DOCDB simple family (application)

EP 01127479 A 20011128; DE 60132381 T 20011128; EP 04007800 A 20011128; US 82929604 A 20040422; US 87237904 A 20040622; US 99465101 A 20011128